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Refurbished Galaxy S21 Ultra 5G

41 products
Bestseller
Galaxy S21 Ultra 5G - Unlocked

Galaxy S21 Ultra 5G - Unlocked

256 GB - Black

Warranty: 12 months
4.3/5
(214)
Starting at
$316.09
$1,026.20 new
Bestseller
Galaxy S21 Ultra 5G - Unlocked

Galaxy S21 Ultra 5G - Unlocked

128 GB - Silver

Warranty: 12 months
4.3/5
(214)
Starting at
$264.93
$1,199.99 new
Bestseller
Galaxy S21 Ultra 5G - Unlocked

Galaxy S21 Ultra 5G - Unlocked

512 GB - Black

Warranty: 12 months
4.3/5
(213)
Starting at
$403.70
$1,499.99 new
Galaxy S21 Ultra 5G - Locked AT&T

Galaxy S21 Ultra 5G - Locked AT&T

128 GB - Black

Warranty: 12 months
4.5/5
(5)
Starting at
$293.00
$1,500.00 new
Galaxy S21 Ultra 5G - Locked Verizon

Galaxy S21 Ultra 5G - Locked Verizon

128 GB - Black

Warranty: 12 months
4.6/5
(4)
Starting at
$321.14
$1,500.00 new
Galaxy S21 Ultra 5G - Unlocked

Galaxy S21 Ultra 5G - Unlocked

128 GB - Silver

Warranty: 12 months
4.3/5
(214)
Starting at
$625.00
$1,199.99 new
Galaxy S21 Ultra 5G - Unlocked

Galaxy S21 Ultra 5G - Unlocked

512 GB - Black

Warranty: 12 months
4.3/5
(215)
Starting at
$388.49
$1,199.00 new
Galaxy S21 Ultra 5G - Unlocked

Galaxy S21 Ultra 5G - Unlocked

128 GB - Brown

Warranty: 12 months
4.3/5
(215)
Starting at
$450.00
$1,500.00 new
Galaxy S21 Ultra 5G - Unlocked

Galaxy S21 Ultra 5G - Unlocked

256 GB - Black

Warranty: 12 months
4.3/5
(219)
Starting at
$693.00
$1,026.20 new
Galaxy S21 Ultra 5G - Locked T-Mobile

Galaxy S21 Ultra 5G - Locked T-Mobile

128 GB - Black

Warranty: 12 months
1/5
(1)
Starting at
$244.14
$1,500.00 new
Galaxy S21 Ultra 5G - Locked AT&T

Galaxy S21 Ultra 5G - Locked AT&T

256 GB - Black

Warranty: 12 months
4.5/5
(5)
Starting at
$304.84
$1,500.00 new
Galaxy S21 Ultra 5G - Unlocked

Galaxy S21 Ultra 5G - Unlocked

128 GB - Dark Gray

Warranty: 12 months
4.3/5
(214)
Starting at
$349.00
$704.00 new
Galaxy S21 Ultra 5G - Locked Verizon

Galaxy S21 Ultra 5G - Locked Verizon

256 GB - Black

Warranty: 12 months
4.6/5
(4)
Starting at
$462.00
$1,206.81 new
Galaxy S21 Ultra 5G - Unlocked

Galaxy S21 Ultra 5G - Unlocked

512 GB - Silver

Warranty: 12 months
4.3/5
(213)
Starting at
$750.00
$1,299.99 new
Galaxy S21 Ultra 5G - Locked Verizon

Galaxy S21 Ultra 5G - Locked Verizon

128 GB - Silver

Warranty: 12 months
4.6/5
(4)
Starting at
$260.18
$1,500.00 new
Galaxy S21 Ultra 5G - Locked T-Mobile

Galaxy S21 Ultra 5G - Locked T-Mobile

128 GB - Silver

Warranty: 12 months
1/5
(1)
Starting at
$270.23
$1,500.00 new
Galaxy S21 Ultra 5G - Locked AT&T

Galaxy S21 Ultra 5G - Locked AT&T

128 GB - Silver

Warranty: 12 months
4.5/5
(5)
Starting at
$270.23
$1,500.00 new
Galaxy S21 Ultra 5G - Locked AT&T

Galaxy S21 Ultra 5G - Locked AT&T

128 GB - Black

Warranty: 12 months
4.5/5
(5)
Starting at
$298.64
$1,206.81 new
Galaxy S21 Ultra 5G - Locked Verizon

Galaxy S21 Ultra 5G - Locked Verizon

512 GB - Black

Warranty: 12 months
4.6/5
(4)
Starting at
$314.99
$1,206.81 new
Galaxy S21 Ultra 5G - Unlocked

Galaxy S21 Ultra 5G - Unlocked

128 GB - Dark Gray

Warranty: 12 months
4.3/5
(214)
Starting at
$325.49
$1,299.99 new
Galaxy S21 Ultra 5G - Locked T-Mobile

Galaxy S21 Ultra 5G - Locked T-Mobile

128 GB - Dark Gray

Warranty: 12 months
1/5
(1)
Starting at
$327.00
$1,299.99 new
Galaxy S21 Ultra 5G - Locked Verizon

Galaxy S21 Ultra 5G - Locked Verizon

128 GB - Dark Gray

Warranty: 12 months
4.6/5
(4)
Starting at
$327.00
$1,299.99 new
Galaxy S21 Ultra 5G - Locked T-Mobile

Galaxy S21 Ultra 5G - Locked T-Mobile

256 GB - Black

Warranty: 12 months
1/5
(1)
Starting at
$334.10
$1,500.00 new
Galaxy S21 Ultra 5G - Locked AT&T

Galaxy S21 Ultra 5G - Locked AT&T

512 GB - Black

Warranty: 12 months
4.5/5
(5)
Starting at
$351.57
$1,199.00 new
Galaxy S21 Ultra 5G - Locked AT&T

Galaxy S21 Ultra 5G - Locked AT&T

512 GB - Black

Warranty: 12 months
4.5/5
(5)
Starting at
$363.46
$1,500.00 new
Galaxy S21 Ultra 5G - Locked T-Mobile

Galaxy S21 Ultra 5G - Locked T-Mobile

512 GB - Black

Warranty: 12 months
1/5
(1)
Starting at
$363.46
$1,500.00 new
Galaxy S21 Ultra 5G - Locked AT&T

Galaxy S21 Ultra 5G - Locked AT&T

256 GB - Dark Gray

Warranty: 12 months
4.5/5
(5)
Starting at
$363.48
$1,299.99 new
Galaxy S21 Ultra 5G - Locked T-Mobile

Galaxy S21 Ultra 5G - Locked T-Mobile

512 GB - Silver

Warranty: 12 months
1/5
(1)
Starting at
$365.17
$1,500.00 new
Galaxy S21 Ultra 5G - Locked AT&T

Galaxy S21 Ultra 5G - Locked AT&T

128 GB - Black

Warranty: 12 months
4.5/5
(5)
Starting at
$399.98
$618.29 new

Refurbished Galaxy S21 Ultra 5G's customer reviews

4.2/5

233 verified reviews in the last 6 months.

  • M

    Michael E.

    Purchased on February 2, 2024

    4/5

    The Samsung S21 Ultra appears to be fine in the two weeks since we received it and was as promised. Ordering was easy and delivery was as expected. Our trade-in offer was much lower than we had anticipated ($25.00) for a phone in complete working order without problems. I have previously purchased certified, refurbished smartphones directly from Samsung and felt we received a much better & fairer trade-in offer. While the price of the S21 Ultra was cheaper from Back Market, I believe that I might have fared better buying from Samsung in terms of overall cost. I will research more closely when it's time for our next purchase.

    Reviewed in the United States on February 19, 2024

    Galaxy S21 Ultra 5G 128GB - Black - Unlocked
  • S

    Shawn N.

    Purchased on May 20, 2024

    4.6/5

    The phone is amazing and just as I expected. It did have a small scratch on the front that is deep enough to see when the phone isn't on when I ordered the excellent version, but other than that it's great!! I would definitely recommend it to anyone looking to buy refurbished!

    Reviewed in the United States on July 1, 2024

    Galaxy S21 Ultra 5G 128GB - Black - Unlocked
  • G

    Gerald P.

    Purchased on March 10, 2024

    4.5/5

    Trading in my beat-up S21Ultra with damaged screen for this excellent condition replacement enabled me to, in turn, take advantage of trade-in promotion at Samsung Store. My old phone was worthless for trade-in otherwise. The refurbisher who purchased my trade-in tried to claim that it didn't take a charge... but with my photos in hand, the Backmarket staff swiftly dealt with that. Be sure to take photos of live phone, and of each stage of packaging, so that Backmarket is able to support you in case of dispute. Great customer service!

    Reviewed in the United States on July 1, 2024

    Galaxy S21 Ultra 5G 128GB - Black - Unlocked
  • G

    Gene B.

    Purchased on February 29, 2024

    5/5

    the whole experience was seamless and great! couldn't have asked for a better experience. I purchased S21 Ultra 256gb Unlocked. while I was hesitant about buying a refurbished device, then my device showed up and all the hesitance went right away! will purchase from again !

    Reviewed in the United States on March 21, 2024

    Galaxy S21 Ultra 5G 256GB - Black - Unlocked
  • J

    Jared R.

    Purchased on January 17, 2024

    4.9/5

    The phone is great. It works perfectly, the camera is awesome and te phone's processing capabilities are in good condition. I always buy refurbished because it's cheaper and this product came on time and in great condition so, thank you!

    Reviewed in the United States on February 7, 2024

    Galaxy S21 Ultra 5G 128GB - Silver - Unlocked
  • K

    Kyle M.

    Purchased on May 27, 2024

    4.6/5

    There was a scratch on the back by the camera, I give the quality of this refurbished device 4.5/5 stars. Everything else 💪 appears to be in good working order. This is a great phone for the price. The ultra that is. 12gb ram...super fast 🏃‍♂️

    Reviewed in the United States on July 1, 2024

    Galaxy S21 Ultra 5G 128GB - Silver - Unlocked
  • L

    La mar R.

    Purchased on June 29, 2024

    4.8/5

    Love the phone, and the seller is A+++!! Thank you so much Note: phone is refurbished, and won't seem to connect to 5G. Not sure if that was the previous issue, but 4GLTE is just as good. Love this phone!

    Reviewed in the United States on July 10, 2024

    Galaxy S21 Ultra 5G 256GB - Black - Unlocked
  • K

    Katie S.

    Purchased on June 15, 2024

    4.8/5

    Buying my new phone was easily a 5/5, but honestly, trading in your phone to this company was a 1/5. I will explain why below. I was trading in my Galaxy Note 20, and yes it did not look the best, but I was HONEST. I selected the options that said it had wear and tear, and selected the option for the screen that said something about "having dead pixels" because it had a VERY TINY area with a dead pixel on it. The original offer was $141, but upon the refurbisher receiving the phone, I was told that it "didn't match the description" and "had a dot on the screen." They counter offered me a whole ONE DOLLAR. It was honestly insulting that you can tell the truth, be told you were wrong, then get that little of an offer. I'd recommend these guys for buying a phone a million times over, but save yourself some time and sell your old phone yourself.

    Reviewed in the United States on July 1, 2024

    Galaxy S21 Ultra 5G 128GB - Black - Unlocked
  • J

    Jason B.

    Purchased on January 24, 2024

    5/5

    I received my Galaxy S21 Ultra 5G phone in excellent (felt new) condition as advertised. If every purchase goes this smoothly I couldn't imagine not opting to give BackMarket FIRST consideration before purchasing electronics. 100% satisfied. Laptop Next!

    Reviewed in the United States on February 5, 2024

    Galaxy S21 Ultra 5G 128GB - Black - Unlocked
  • S

    Saara R.

    Purchased on February 28, 2024

    5/5

    Buying an electronic online that's been refurbished is always a risk. The phone I purchased from Back Market is nicer and less expensive than Verizon. The warranty is better too!

    Reviewed in the United States on March 10, 2024

    Galaxy S21 Ultra 5G 128GB - Silver - Unlocked
See all 233 reviews

Read our guides

Refurbished Galaxy S21 Ultra 5G – Fast connectivity device

 

The refurbished Samsung Galaxy S21 Ultra 5G from Back Market is a high-performing device that has been thoroughly tested to ensure it gets the job done right, right away. It has been refurbished to give it new and exciting features, thus performing like a brand new Galaxy S21 Ultra 5G. If you prefer a Samsung phone that guarantees fast connectivity, the refurbished Galaxy S21 Ultra 5G is your best bet. It has a powerful and intelligent battery that stores adequate power to keep it running all day long. Would you like to take some memorable photos and videos with your family and friends? The device has a high-resolution camera to help you shoot stunning photos and videos any time of the day. The refurbished Galaxy S21 Ultra 5G will help you discover more anywhere and anytime. The S21 Ultra 5G belongs to the Galaxy S21 series, which has been released 2021.

Significant features to find in Galaxy S21 Ultra 5G refurbished device

  • The first thing you’ll love about the refurbished Samsung Galaxy 21 Ultra 5G is its fast processor and robust connectivity. Its processor and 5G network connectivity allow you to perform various activities such as browsing, live streaming, video editing, and story sharing in a flash. You can also multi-task without it running slowly. It has a 5,000 mAh battery that can last for over 11 hours, ensuring you stay connected to the outside world.
  • The refurbished Galaxy S21 Ultra 5G helps you capture the best moments in your life, thanks to its highest resolution camera. It has 108MP and an upgraded sensor to take crisp, clear, and colourful photos and videos. The multi-lens camera helps you zoom in with more clarity from multiple angles. Also, its super-sleek 8k video will help you to shoot HD videos during the day and at night. You can use its camera to create share-ready GIFs in a single take. In other words, its camera makes you feel like you have a professional studio wherever you go.
  • When it comes to displaying, the refurbished Samsung Galaxy 21 Ultra 5G helps you focus on what’s shown on the screen without straining your eyes. It has a high contrast ratio and a 6.8-inch adaptive screen display that will automatically adjust from 10Hz to 120 Hz. Also, it has intuitive blue-light management that changes depending on the time of the day to take care of your eyes.
  • You can store all your photos, videos, and documents with the refurbished S21 Ultra 5G, thanks to its 128GB internal memory. The device has everything to help you explore and discover more! 

Why buy a cheap Galaxy S21 Ultra 5G from Back Market?

Buying a refurbished Samsung Galaxy 21 Ultra 5G from Back Market has various exciting perks. The device is cheap and guarantees the same high-quality features, just like a brand new S21 Ultra 5G. Back Market ensures that the device is meticulously refurbished to function as its original counterpart. As a result, you’ll purchase a high-performing device and save some money.

If you’re eco-conscious, the device conserves the environment by saving 8 Oz of e-waste. You’ll also enjoy 30 days to change your mind if it doesn’t impress you and a 1-year warranty. Are you looking for a cheaper phone than the S21 Ultra 5G but you still want a top notch phone? Then we can recommend you the Galaxy S21 Plus 5G or even the Galaxy S20 Ultra 5G, that has been released in 2020.

Does a refurbished Galaxy S21 Ultra 5G have an external memory slot?

Unfortunately, this phone doesn’t have an external memory slot for a MicroSD card. However, you can use its large internal 128GB memory to store all your media files, apps, and essential documents.

Is refurbished Samsung Galaxy 21 Ultra 5G single or dual sim?

The device is a single sim.

What other accessories are included in Galaxy S21 Ultra 5G?

All Samsung Galaxy 21 Ultra 5G come with a compatible charging cable. However, you won’t find an AC adapter and headphones since they contribute to e-waste, because most likely you already have an adapter and headphones.